Molding-flask.



l panvin device o ,rangement of 'fully descri and shown in the accompanying drawings,

N JOHN O. BUTLER, F MARIETTA, PENNSYLVANIA.

HOLDING-msx.

lpeeiaeatioa of Letters latent.

Patented Fel). 3. 1914,

Application lied July 19, 1913. Serial No. 780,041.

To all whom it may concern.'

Be it known that I, Joux C. DUrLaa, a

State of Pennsylvania, have invented certain new and useful Improvements in Molding- Flasks, of which the following is u. speci cation, reference being had to the accom.-

drawings.

'Ihis invention relates to an im roved a aratus for dumping sand out o the mol ing flask after the molded pattern has been removed therefrom, the object of the invention bein to provide a simple and durable the above character wherein the flaslelnay be quickly therefrom after the sand in the moldin and readily dumpe molded pattern has been removed from the sand.

Another object of the invention is the provision of an apparatus of this character which will possess advantages in points of eiliciency and durability, is inexpensive of manufacture and at the same time is simple in construction and o ration. With the above an other objects in .view, this invention consists in the novel features of construction and the combination and ararts to be hereinafter more pointed out in the claims inwhich- Figure 1 is a top plan-view; Fig. 2 is a side elevation; Fig. 3 is a transverse sectional view.

Referring more particularly to the drawings` 1 indicates the fraaie of my improved' flask having arranged transversely across the center a shaft 2, upon one end of which is mounted a gear 3, said gear being arranged upon the outer side of the frame l. Mounted upon the stub shaft 4 and adapted to mesh with the gear 3 is a second gear 5, a handle memlicr 0 bein provided whereby the shaft 4 may be readil rotated to impart motion to the shaft 2. ,xtending longitudinally of the frame 1 are the spaced arallel plates i'. tho ends of which are rigidiv aceurcd in any suitable. manner to the ends of the fraaie l. Arranged u on op osite sides and between the longitu inal p ates 7 are tho movable ilates 8 which terminate short the frame 1 and are mounted of the ends o u on the shaft 2 for rotation therewith.

he movable plates 8 are securely held upon the shaft 2 by means of 'the securing plates t), which are arranged upon opposite sides ri i of the plates 8 an lv secured to the shaft 2, thus securely olding the plates 8 against longitudinal movement upon the s aft. The ends of the shaft 2 are rotatably mounted within the side walls of the frame 1 and the intermediate ortion of the shaft is mounted in suitable earings formed in the longitudinal plates 7. Secured to each end of the frame 1 are the plates 10 which are provided with outwandl extending lugs 11 adapted to be engaged a ring, hoor, or other implement, carried by a derrick to raise the flask, when desired;

It will be readily apparent from the foregoing descii ion taken in connection with the accompanyingdrawings that after the. tinishedpattern has been removed from the sand in the mold, the flask is removed from the inold by.means of a derrick or the like and the handle member 6 rotated to actuate the movable lates 8 to remove the sand from the flas It will be readily understood that by actuating the movable plates 8. the sand which has become tightl packed within the flask may be quickly an readily removed therefrom. It will also bo apparent from the description taken in conncction with the accompanying drawings that my device is extremely simple in construction and can be manufactured at a comparatively low cost.

While I have shown and described the preferred form of my invention, it will be obvious that'. various changes in the details of construction and in the proportions ma)l he resorted to for successfully carrying my invent-ion into ractice without sacrificing any of the noveiifcaturea or departing from thel scope of the appended claims.

Aa clearly illustrated in Fig. 2, I provide a pivotcd pawl 19. which is adapted for engagemont with the teeth on the gear 3 to prevent any rotary movement whatever on the part of the gear when the movable plates 8 are arranged in their operative position. Ttwill he readily apparent that the pawl ll may be. quickly and easily raised and disen` gaged from the. teeth on the. gear 3 so that. the gears 3 and ."i may be readily rotated.

lVlnit. l claim iszl. device of the class described including a frame, longitudinal plates'connected to the end portions of said frame. a transvetao shaft mounted for rotation within the frame` movable plates mounted upon said liti shaft and'adapted to be actuated thereby, a gear upon one end of said shaft, a second gear adapted to mesh with the rst gear and a handle member carried by the second gear and adapted to actuate said shaft, as und for the urpose set forth.

2. A evice of the class described including a frame, rigid plates arranged lengtudinally therein and movable plates arranged within said frnmo and in iparallel relation 10 with the rigid platos, ns an( for the purpose set forth.

In tostmonl whereof I hereunto nix my signature in t e presence of two witnesses.

' JOHN C. DUILER. Witnesses:

JOHN J. Smm., B. G. Hxrrm.

Copla et this patent mcy be obtained for in eeuu non, by addressing the Commissioner of I'atexmz wuhingtonm. C." 

